Rocker detection tool for mounting furnace roller of quenching and tempering furnace

Abstract

The utility model provides a rocker detection tool for mounting furnace rollers of quenching and tempering furnaces, and belongs to the technical field of industrial heat treatment furnaces. Comprising a swing arm, a micrometer clamping sleeve, a roller shaft clamping sleeve and a micrometer, one end of the swing arm is fixedly connected with the micrometer clamping sleeve, and the micrometer is detachably fixed in the micrometer clamping sleeve; the other end of the swing arm is fixedly connected with a roller shaft clamping sleeve, and the roller shaft clamping sleeve is used for being fixedly arranged on a furnace roller shaft in a sleeving mode in a detachable mode. The device is designed by combining the mounting characteristics of the furnace roller of the quenching and tempering furnace, is simple and convenient to operate, high in work efficiency, low in cost and high in precision, realizes accurate mounting of the furnace roller, and solves the problems that a conventional adjusting method needs in-furnace measurement, the operation space is limited and the precision is difficult to control.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial heat treatment furnaces, and in particular relates to a rocker detection tool for installing furnace rollers of a quenching and tempering furnace. Background Art

[0002] The rollers in the quenching and tempering furnace are the main support for the quenching and tempering of steel plates, and determine the movement trajectory of the steel plates. The ultimate goal of installing the furnace rollers is to ensure that the deviation of the product (steel plate) is less than the design requirements under hot conditions. During the installation process, the allowable deviation of the axial horizontality of the roller is 0.20mm / 1000mm, the allowable deviation of the verticality between the roller and the longitudinal center line of the unit is 0.15mm / 1000mm, the allowable deviation of the parallelism of two adjacent rollers is 0.30mm / 1000mm, and the height difference between the roller surfaces is less than 0.3mm. The conventional roller installation method is to use auxiliary installation tools such as steel rulers to make group adjustments in the furnace. It is a superimposed progressive method with limited operating space, low work efficiency, and large cumulative errors. The rollers are prone to lateral deviation during operation, and in severe cases, they hit the furnace wall. Due to the high temperature in the furnace, maintenance is difficult, causing problems such as affecting production. Therefore, how to improve the installation accuracy of the furnace rollers is a technical problem that needs to be solved. Utility Model Content

[0003] The technical problem solved by the utility model is: to provide a rocker detection tool for installing the furnace rollers of a quenching and tempering furnace. The utility model combines the installation characteristics of the furnace rollers of the quenching and tempering furnace to develop a rocker detection tool for installing the furnace rollers of the quenching and tempering furnace, which is simple to operate, high in efficiency, low in cost and high in precision, so as to achieve accurate installation of the furnace rollers and solve the problems that conventional adjustment methods require measurement in the furnace, the operating space is limited and the precision is difficult to control.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A rocker detection tool for installing a furnace roller of a quenching and tempering furnace comprises a swing arm, a micrometer sleeve, a roller sleeve and a micrometer, wherein one end of the swing arm is fixedly connected to a micrometer sleeve, in which a micrometer is detachably fixed; the other end of the swing arm is fixedly connected to a roller sleeve, and the roller sleeve is used to be fixedly sleeved on the furnace roller shaft in a detachable manner.

[0006] Wherein, the micrometer ferrule is a circular tubular structure made of stainless steel pipe, the inner diameter of the micrometer ferrule is adapted to the outer diameter of the micrometer connection, and the central axis of the micrometer ferrule is perpendicular to the swing arm.

[0007] Furthermore, two threaded holes I are formed on the wall of the micrometer ferrule, the axis of the threaded hole I is perpendicular to the micrometer ferrule, a fastening screw I is screwed into the threaded hole I, and the micrometer is inserted into the micrometer ferrule and fixed by the fastening screw I.

[0008] The roller sleeve is a circular tubular structure made of a stainless steel tube, the inner diameter of the roller sleeve is adapted to the outer diameter of the furnace roller shaft, and the central axis of the roller sleeve is perpendicular to the swing arm.

[0009] Furthermore, two threaded holes II are formed on the wall of the roller sleeve, the axis of the threaded hole II is perpendicular to the roller sleeve, and a fastening screw II is screwed into the threaded hole II. After the roller sleeve is put on the furnace roller shaft, the furnace roller shaft is tightened by the fastening screw II.

[0010] Furthermore, the micrometer sleeve and the roller sleeve are connected via a reinforcing connecting rod.

[0011] The advantages of this utility model compared with the prior art:

[0012] 1. This scheme combines the installation characteristics of the quenching and tempering furnace rollers to develop a rocker detection tooling for the installation of quenching and tempering furnace rollers that is easy to operate, high in efficiency, low in cost, and high in precision, so as to achieve accurate installation of the furnace rollers and solve the problem that the conventional adjustment method requires in-furnace measurement, limited operating space, and difficult to control precision. During operation, by rotating the swing arm of the tooling left and right, the distance between the micrometer and the steel wire auxiliary line is recorded to keep the left and right distances consistent. The verticality of the roller table and the longitudinal center line of the unit and the parallelism of the two adjacent roller tables can be adjusted at the same time, with high precision, simple operation, and high efficiency.

[0013] 2. When this solution is used for the installation of the furnace rollers of the quenching and tempering furnace, a set of rocker detection tooling can be used cyclically, and the cumulative error is very small, which fundamentally solves the problem of large cumulative deviations between the parallelism of the furnace rollers and the verticality of the center line of the furnace body;

[0014] 3. The tooling of this solution can be measured and installed outside the furnace in combination with the furnace structure, so the operating space is not limited and the operation is controllable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the structural front view of the utility model;

[0016] Figure 2 It is a top view of the structure of the utility model;

[0017] Figure 3 This is the operation process of the utility model for furnace roller installation;

[0018] Figure 4 It is a plane diagram of the coaxiality adjustment of the roller hole of the furnace shell in the embodiment of the utility model;

[0019] Figure 5 It is a plan view of furnace roller leveling in the embodiment of the utility model;

[0020] Figure 6This is a cross-sectional view of the furnace roller fine adjustment in the embodiment of the utility model. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "includes a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0023] See also Figure 1-6 , describe the embodiments of the present utility model in detail.

[0024] Example 1: Rocker detection tooling for installing rollers in quenching and tempering furnaces, see Figure 1-2 As shown, it includes a swing arm 1, a micrometer sleeve 2, a roller sleeve 6 and a micrometer 7. One end of the swing arm 1 is fixedly connected to the micrometer sleeve 2, and the micrometer 7 is detachably fixed in the micrometer sleeve 2; the other end of the swing arm 1 is fixedly connected to the roller sleeve 6, and the roller sleeve 6 is used to be fixedly sleeved on the furnace roller shaft 5 in a detachable manner.

[0025] In one embodiment, the micrometer ferrule 2 is a circular tubular structure made of a stainless steel tube, the inner diameter of the micrometer ferrule 2 is adapted to the outer diameter of the connection of the micrometer 7 , and the central axis of the micrometer ferrule 2 is perpendicular to the swing arm 1 .

[0026] Two threaded holes I are formed on the wall of the micrometer ferrule 2, the axis of the threaded hole I is perpendicular to the axis of the micrometer ferrule 2, a fastening screw I3 is screwed into the threaded hole I, and the micrometer 7 is inserted into the micrometer ferrule 2 and fixed by the fastening screw I3.

[0027] In one embodiment, the roller sleeve 6 is a circular tubular structure made of a stainless steel tube, the inner diameter of the roller sleeve 6 is adapted to the outer diameter of the furnace roller shaft 5 , and the central axis of the roller sleeve 6 is perpendicular to the swing arm 1 .

[0028] There are two threaded holes II on the wall of the roller sleeve 6, the axis of the threaded hole II is perpendicular to the axis of the roller sleeve 6, and a fastening screw II4 is screwed into the threaded hole II. After the roller sleeve 6 is sleeved on the furnace roller shaft 5, the furnace roller shaft 5 is tightened by the fastening screw II4.

[0029] In one embodiment, the micrometer sleeve 2 and the roller sleeve 6 are further connected via a reinforcing connecting rod 8 to improve the connection rigidity of the overall tooling.

[0030] This structure is developed in combination with the installation characteristics of the quenching and tempering furnace rollers, and is a quenching and tempering furnace roller installation rocker detection tooling with simple operation, high efficiency, low cost and high precision. It realizes the precise installation of the furnace rollers and solves the problems that conventional adjustment methods require in-furnace measurement, limited operating space and difficult precision control.

[0031] Example 2: This example is a method for adjusting and installing the furnace roller using a rocker detection tool. Figure 3 As shown, the specific steps are as follows:

[0032] 1. Measure the elevation, lay the bottom plate, and locate the center line of the furnace c

[0033] To ensure the installation accuracy of the furnace shell, first level the rails at the bottom of the furnace body and lay the furnace bottom plate. According to the design requirements, determine the center line and elevation of the furnace steel structure, and use steel wire to mark the longitudinal axis of the furnace as the main longitudinal control line of the furnace body, that is, the center line c of the furnace body.

[0034] 2. Lift the furnace wall to the corresponding position of the furnace bottom plate and adjust the coaxiality of the furnace walls on both sides.

[0035] After the furnace wall is hoisted to the corresponding position of the furnace bottom plate, it is fixed with a fall chain, and the furnace wall elevation is measured with a level, and adjusted with a vertical jack. After the furnace walls on both sides are in place, the theodolite 9 is fixed to the furnace bottom plate. First, the reference point c of the furnace center line is measured, and then a steel ruler is used to measure from the furnace roller hole at the same position of the first furnace wall. The theodolite is rotated 90 degrees left and right to make the readings of the furnace roller holes at the same position on both sides the same. If there is a deviation, it is adjusted with a horizontal jack. After meeting the design requirements, it is fixed with channel steel welding. Figure 4 shown.

[0036] 3. Fine adjustment of furnace rollers

[0037] Use lifting tools to insert the furnace roller into the furnace body channel, use special installation tools to pre-assemble the roller bearing seat and bearing, and fill them with sufficient high-temperature grease, use steel wire to draw a control line parallel to the furnace body center line c at 100 mm away from the transmission side shaft end as an auxiliary line d, use a rocker detection fixture to fix it to each roller shaft in turn, make the micrometer 7 rotate left and right in the same plane, record the distance between the micrometer 7 and the auxiliary line, adjust the bearing seats on both sides of the furnace roller to keep the left and right distance consistent, adjust the furnace roller to the appropriate position, and then the verticality of the furnace roller and the longitudinal axis of the furnace body center line c meets the design requirements.

[0038] This method uses a theodolite to control the coaxiality of the furnace roller hole. The special rocker detection fixture adjusts the verticality of the roller and the longitudinal center line of the unit and the parallelism of the two adjacent rollers through the left and right swing arms. It has high accuracy, simple operation and high efficiency. Moreover, this method is a measurement outside the furnace, and the cumulative error is very small.

[0039] Embodiment 3: This embodiment is a specific implementation method of using a rocker detection tool to detect the installation accuracy of the furnace roller as follows:

[0040] First, all the furnace rollers are inserted into place, the bearing seats are installed, steel wires are used as positioning lines, the horizontality and elevation of the furnace rollers are measured, the roller table is fine-tuned, and acceptance is completed.

[0041] Use the hoisting tool to put the furnace roller into the furnace body channel, then assemble the roller bearing seat and bearing, and fill with sufficient high-temperature grease. Use steel wire to draw an auxiliary line d parallel to the center line c of the furnace body at 100mm from the transmission side shaft end, and re-measure the center line of the furnace body to make a=a'. Figure 5 shown.

[0042] Put the roller shaft sleeve 6 in the rocker detection fixture on the furnace roller shaft 5, adjust the fastening screw Ⅱ4 to fix it with the furnace roller shaft 5, put the micrometer 7 into the micrometer sleeve 2 on the swing arm 1, fasten it with the fastening screw Ⅰ3, rotate the swing wall 1 left and right, so that the micrometer 7 on it rotates in the same plane until it is close to the steel wire auxiliary line d, and adjust the furnace roller bearing seat to make the distance between the micrometer and the auxiliary line d equal on both sides of the furnace roller center line e, such as Figure 6 As shown, the verticality between the furnace roller and the longitudinal axis of the furnace body center line meets the design requirements.

[0043] When operating this tool, the distance between the micrometer and the wire auxiliary line is recorded by rotating the swing arm of the tool left and right to keep the left and right distances consistent. The verticality between the roller and the longitudinal center line of the unit and the parallelism of two adjacent rollers can be adjusted at the same time, with high precision, easy operation and high efficiency.

[0044] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Rocker detection tooling for installing quenching and tempering furnace rollers, characterized by: The invention comprises a swing arm (1), a micrometer sleeve (2), a roller sleeve (6) and a micrometer (7); one end of the swing arm (1) is fixedly connected to the micrometer sleeve (2), and the micrometer (7) is detachably fixed in the micrometer sleeve (2); the other end of the swing arm (1) is fixedly connected to the roller sleeve (6), and the roller sleeve (6) is used to be fixedly sleeved on the furnace roller shaft (5) in a detachable manner.

2. The rocker detection tool for installing the roller of the quenching and tempering furnace according to claim 1 is characterized in that: The micrometer ferrule (2) is a circular tubular structure made of a stainless steel tube. The inner diameter of the micrometer ferrule (2) is adapted to the outer diameter of the connection portion of the micrometer (7). The central axis of the micrometer ferrule (2) is perpendicular to the swing arm (1).

3. The rocker detection tool for installing the roller of the quenching and tempering furnace according to claim 2 is characterized in that: Two threaded holes I are formed on the wall of the micrometer sleeve (2), the axis of the threaded hole I is perpendicular to the axis of the micrometer sleeve (2), a fastening screw I (3) is screwed into the threaded hole I, and the micrometer (7) is inserted into the micrometer sleeve (2) and fixed by the fastening screw I (3).

4. The rocker detection tool for installing the roller of the quenching and tempering furnace according to claim 1 is characterized in that: The roller sleeve (6) is a circular tubular structure made of a stainless steel tube. The inner diameter of the roller sleeve (6) is adapted to the outer diameter of the furnace roller shaft (5). The central axis of the roller sleeve (6) is perpendicular to the swing arm (1).

5. The rocker detection tool for installing the roller of the quenching and tempering furnace according to claim 4 is characterized in that: Two threaded holes II are formed on the wall of the roller sleeve (6), the axes of the threaded holes II are perpendicular to the axes of the roller sleeve (6), and a fastening screw II (4) is screwed into the threaded holes II. After the roller sleeve (6) is sleeved on the furnace roller shaft (5), the furnace roller shaft (5) is tightened by the fastening screw II (4).

6. The rocker detection tool for installing the roller of the quenching and tempering furnace according to claim 1 is characterized in that: The micrometer sleeve (2) and the roller sleeve (6) are also connected via a reinforcing connecting rod (8).

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